Answer:
#3: x is approximately 0.37, -5.37, #4: x is approximately 4.19, -1.19
Step-by-step explanation:
You can solve using the quadratic equation or by solving with the perfect square
= 
x is approximately 0.37, -5.37
The solution for this problem would be:
f'(x) = 1 - 1/x^2 = (x^2 - 1)/x^2
is positive where |x| > 1
hence (-inf, -1) and (1, inf) are the regions in which f' is positive and therefore f is increasing.
Therefore, the answer is (-infinity,-1] U [1,infinity).
Answer:
:^
Step-by-step explanation:
- sorry I couldn't type the equation so I took a screenshot
9514 1404 393
Answer:
A. 3/8 ft
B. width would decrease
Step-by-step explanation:
A. The area of a rectangle is given by the formula ...
A = LW
Solving for W, we find ...
W = A/L . . . . . width is inversely proportional to length for the same area
Using the given dimensions, we find the width to be ...
W = (3/10 ft²)/(4/5 ft) = (3/10)(5/4) ft
W = 3/8 ft
The width of the card is 3/8 ft.
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B. Width is inversely proportional to length for the same area, so an increase in length would result in a decrease of width.
